Add Licensed To Help Verify Prod Licenses (#180)

* add licensed workflow and config files

* manual dependency verification

* Hide generated license files in pr

.licenses/npm/@types/node.dep.yml

@@ -0,0 +1,26 @@
+---
+name: "@types/node"
+version: 12.0.10
+type: npm
+summary: TypeScript definitions for Node.js
+homepage: https://github.com/DefinitelyTyped/DefinitelyTyped#readme
+license: mit
+licenses:
+- sources: LICENSE
+  text: "    MIT License\r\n\r\n    Copyright (c) Microsoft Corporation. All rights
+    reserved.\r\n\r\n    Permission is hereby granted, free of charge, to any person
+    obtaining a copy\r\n    of this software and associated documentation files (the
+    \"Software\"), to deal\r\n    in the Software without restriction, including without
+    limitation the rights\r\n    to use, copy, modify, merge, publish, distribute,
+    sublicense, and/or sell\r\n    copies of the Software, and to permit persons to
+    whom the Software is\r\n    furnished to do so, subject to the following conditions:\r\n\r\n
+    \   The above copyright notice and this permission notice shall be included in
+    all\r\n    copies or substantial portions of the Software.\r\n\r\n    THE SOFTWARE
+    IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\r\n    IMPLIED,
+    INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\r\n    FITNESS
+    FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\r\n    AUTHORS
+    OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\r\n    LIABILITY,
+    WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\r\n    OUT
+    OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE\r\n
+    \   SOFTWARE\r\n"
+notices: []